April weather forecast
Santa Clotilde, São Tomé and Príncipe

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Weather in April

The month of April embraces Santa Clotilde, São Tomé and Príncipe, with an almost identical climate from March, with a minor decrease in temperatures. This period witnesses a slight decrease in the average rainfall with 126mm (4.96") precipitation. Although the weather continues to be humid, a subtle shift is discernable with a slight decline in the UV index. The overall climate remains pleasantly uniform, marked by moderate winds. May prudently comes in bringing tallied temperatures.

Temperature

The arrival of April denotes a barely perceptible change in the average high-temperatures to a still warm 28.6°C (83.5°F) from March's 28.8°C (83.8°F). April registers an average low temperature of 27.2°C (81°F) in Santa Clotilde, subtly lower than the daytime maximum.

Heat index

April's average heat index is computed to be a tropical 33°C (91.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Note that heat index values are valued for light wind and location in the shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In April, the average relative humidity in Santa Clotilde is 77%.

Rainfall

In April, the rain falls for 22 days. Throughout April, 126mm (4.96") of precipitation is accumulated. In Santa Clotilde, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

The average length of the day in April is 12h and 7min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:41. On the last day of April, in Santa Clotilde, sunrise is at 05:27 and sunset at 17:35 GMT.

Sunshine

In Santa Clotilde, São Tomé and Príncipe, the average sunshine in April is 8.1h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in April translates into the following instructions:
Fend off overexposure. Sun protection is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

How hot is April in Santa Clotilde?

The high-temperature in Santa Clotilde, São Tomé and Príncipe, during April is 28.6°C (83.5°F) and the low-temperature is 27.2°C (81°F). In April, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 33°C (91.4°F).

What is the average humidity in April in Santa Clotilde?

In Santa Clotilde, São Tomé and Príncipe, the average relative humidity in April is 77%.

How much does it rain in Santa Clotilde in April?

In April, the rain falls for 22 days. Throughout April, 126mm (4.96") of precipitation is accumulated.

How many hours of daylight does Santa Clotilde have in April?

The average day length in April in Santa Clotilde is 12h and 7min.

When is the sunrise / sunset in April in Santa Clotilde?

On the first day of April in Santa Clotilde, sunrise is at 05:34 and sunset at 17:41. On the last day of the month, sunrise is at 05:27 and sunset at 17:35 GMT.

How long on average sun shines in April in Santa Clotilde?

In April, the average sunshine duration is 8.1h.

What is the month with the highest UV index in Santa Clotilde?

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in April in Santa Clotilde?

In Santa Clotilde, São Tomé and Príncipe, the average daily maximum UV index in April is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in April
Santa Clotilde, São Tomé and Príncipe

Average temperature in April - Santa Clotilde, São Tomé and Príncipe
  • Average high temperature in April: 28.6°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in April: 27.2°C

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure in April
Santa Clotilde, São Tomé and Príncipe

Average pressure in April - Santa Clotilde, São Tomé and Príncipe
  • Average pressure in April: 1010.1mbar

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed in April
Santa Clotilde, São Tomé and Príncipe

Average wind speed in April - Santa Clotilde, São Tomé and Príncipe
  • Average wind speed in April: 10.9km/h

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in April
Santa Clotilde, São Tomé and Príncipe

Average humidity in April - Santa Clotilde, São Tomé and Príncipe
  • Average humidity in April: 77%

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall in April
Santa Clotilde, São Tomé and Príncipe

Average rainfall in April - Santa Clotilde, São Tomé and Príncipe
  • Average rainfall in April: 126mm

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in April
Santa Clotilde, São Tomé and Príncipe

Average rainfall days in April - Santa Clotilde, São Tomé and Príncipe
  • Average rainfall days in April: 22 days

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight in April /
Average sunshine in April
Santa Clotilde, São Tomé and Príncipe

Average daylight in April / Average sunshine in April - Santa Clotilde, São Tomé and Príncipe
  • Average daylight in April: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The months with the shortest days are January, November and December (Average daylight: 12h and 6min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days in April
Santa Clotilde, São Tomé and Príncipe

Average sunshine days in April - Santa Clotilde, São Tomé and Príncipe
  • Average sunshine days in April: 6.2 days

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in April
Santa Clotilde, São Tomé and Príncipe

Average UV index in April - Santa Clotilde, São Tomé and Príncipe
  • Average UV index in April: 7

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in April
Santa Clotilde, São Tomé and Príncipe

Average cloud cover in April - Santa Clotilde, São Tomé and Príncipe
  • Average cloud cover in April: 39

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility in April
Santa Clotilde, São Tomé and Príncipe

Average visibility in April - Santa Clotilde, São Tomé and Príncipe
  • Average visibility in April: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).

Santa Clotilde, São Tomé and Príncipe

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